The Associations between Rapid Strength Development and Muscle Stiffness in Older Population

Nakamura, Masatoshi; Kiyono, Ryosuke; Sato, Shigeru; Yahata, Kazuhide; Fukaya, Taizan; Nishishita, Satoru; Konrad, Andreas

doi:10.3390/healthcare9010080

Cited by 3 publications

(7 citation statements)

References 26 publications

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“…Foam rolling and the RM intervention have been shown to modify the myofascial viscoelastic properties by mechanisms, such as viscosity reductions, loosening of myofascial restrictions, fluid changes, and cellular responses (Cheatham and Stull, 2019;Kelly and Beardsley, 2016). Our study did not reveal significant changes in passive stiffness and shear elastic modulus, which is consistent with some of the previous studies (Krause et al, 2019;Nakamura et al, 2021a;Yoshimura et al, 2020). In contrast, other earlier trials showed that foam rolling decreases the passive stiffness of the anterior thigh (Wilke et al, 2019) or the shear elastic modulus of the hamstring (Morales-Artacho et al, 2017).…”

Section: Discussionsupporting

confidence: 93%

“…As indicated, the results of the present study revealed increased DF ROM after a 180-second (three sets of 60-second) RM intervention, which is generally in accordance with previous works (Krause et al, 2019;Nakamura et al, 2021a;Wilke et al, 2019). However, in contrast to a recent meta-analysis (Wilke et al 2020), there were no significant sex differences.…”

Section: Discussionsupporting

confidence: 92%

“…In addition to the changes in DF ROM, the present study found significant alterations of the passive torque at DF ROM, FSS, and PPT, which is consistent with the available evidence (Aboodarda et al, 2015;Cavanaugh et al, 2017;Cheatham and Stull, 2019;Krause et al, 2019;Nakamura et al, 2021a). Moreover, there were significant positive correlations between the changes in DF ROM and passive torque at DF ROM.…”

Section: Discussionsupporting

confidence: 91%

“…Solid evidence suggests that foam rolling decreases the compressive stiffness of the anterior thigh (Baumgart et al, 2019;Wilke et al, 2019), Hamstring muscles (Morales-Artacho et al, 2017), and iliotibial tract (Mayer et al, 2019). Yet, some studies did not find significant changes in passive tensile stiffness of the anterior thigh (Krause et al, 2019) or compressive stiffness of the medial gastrocnemius muscle (MG) (Nakamura et al, 2021a), which suggests that foam rolling-induced ROM increases may also be due to sensory factors (i.e., altered stretch tolerance) (Behm and Wilke, 2019). Regarding neurophysiological changes, a previous study by Young et al (2018) showed decreased H-reflex during roller massager (RM) application (Young et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Sex Differences in the Mechanical and Neurophysiological Response to Roller Massage of the Plantar Flexors

Nakamura¹,

Konrad²,

Kiyono³

et al. 2021

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Self-massage using foam rollers, sticks, or balls has become a popular technique to enhance joint range of motion (ROM). Although increases are reported to be larger in females than males, the mechanisms of this observation are unclear. The present study aimed to investigate the effect of roller massage (RM) on ROM, passive tissue stiffness, and neurophysiological markers as a function of sex. Males (n = 15, 22.8 ± 2.9 yrs.) and females (n = 14, 21.1 ± 0.7 yrs.) performed three 60-second bouts of calf RM. Outcomes assessed pre-, and post-intervention included passive dorsiflexion (DF) ROM, passive tissue stiffness, passive torque, DF angle at the first stretch sensation, shear elastic modulus, and spinal excitability. DF ROM (+35.9 %), passive torque at DF ROM (+46.4 %), DF angle at first stretch sensation (+32.9 %), and pain pressure threshold (+25.2 %) increased in both groups (p<.05) with no differences between males and females (p > 0.05). No changes were observed for passive stiffness, shear elastic modulus, and spinal excitability (p > 0.05). Roller massage may increase ROM independently of sex, which, in the present study, could not be ascribed to alterations in passive stiffness or neurophysiological markers. Future studies may further elucidate the role of sensory alterations as possible factors driving RM-induced changes in flexibility.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sex Differences in the Mechanical and Neurophysiological Response to Roller Massage of the Plantar Flexors

Nakamura¹,

Konrad²,

Kiyono³

et al. 2021

jsportscimed

Self Cite

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“…No relationship between muscle stiffness and RFD in older people was found. 35 Changes in tendon stiffness can induce RFD discrepancies, but no such change has been demonstrated in CKD patients, presumably because the rate of force transmission through the tendon is extremely fast, requiring a considerably large change in the tendon structure to significantly disrupt RFD. 16,25 Human type-II muscle fibres are faster than type-I fibres.…”

Section: Discussionmentioning

confidence: 99%

Analysis of the rate of force development reveals high neuromuscular fatigability in elderly patients with chronic kidney disease

Chatrenet

Piccoli

Audebrand

et al. 2023

J cachexia sarcopenia muscle

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BackgroundChronic kidney disease (CKD) induces muscle wasting and a reduction in the maximum voluntary force (MVF). Little is known about the neuromuscular fatigability in CKD patients, defined as the reduction of muscle force capacities during exercise. Neuromuscular fatigability is a crucial physical parameter of the daily living. The quantification of explosive force has been shown to be a sensitive means to assess neuromuscular fatigability. Thus, our study used explosive force estimates to assess neuromuscular fatigability in elderly CKD patients.MethodsInclusion criteria for CKD patients were age ≥ 60 years old and glomerular filtration rate (GFR) < 45 mL/min/1.73 m2 not on dialysis, and those for controls were GFR > 60 mL/min/1.73 m2, age and diabetes matched. The fatigability protocol focused on a handgrip task coupled with surface electromyography (sEMG). Scalars were extracted from the rate of force development (RFD): absolute and normalized time periods (50, 75, 100, 150 and 200 ms, RFD50, RFD75, RFD100, RFD150 and RFD200, respectively), peak RFD (RFDpeak in absolute; NRFDpeak normalized), time‐to‐peak RFD (t‐RFDpeak) and the relative force at RFDpeak (MVF‐RFDpeak). A statistical parametric mapping approach was performed on the force, impulse and RFD–time curves. The integrated sEMG with time at 0–30, 0–50, 0–100 and 0–200 ms time intervals relative to onset of sEMG activity was extracted and groups were compared separately for each sex.ResultsThe cohort of 159 individuals had a median age of 69 (9IQR) years and body mass index was 27.6 (6.2IQR) kg/m2. Propensity‐score‐matched groups balanced CKD patients and controls by gender with 66 males and 34 females. In scalar analysis, CKD patients manifested a higher decrement than controls in the early phase of contraction, regarding the NRFDpeak (P = 0.009; η2p = 0.034) and RFD75 and RFD100 (for both P < 0.001; η2p = 0.068 and 0.064). The one‐dimensional analysis confirmed that CKD males manifest higher and delayed neuromuscular fatigability, especially before 100 ms from onset of contraction. sEMG was lower in CKD patients than controls in the 0–100 ms (at rest: P = 0.049, Cohen's d = 0.458) and 0–200 ms (at rest: P = 0.016, Cohen's d = 0.496; during exercise: P = 0.006, Cohen's d = 0.421) time windows. Controls showed greater decrease of sEMG than CKD patients in the 0–30 ms (P = 0.020, Cohen's d = 0.533) and 0–50 ms (P = 0.010, Cohen's d = 0.640) time windows. As opposite to females, males showed almost the same differences between groups.ConclusionsOur study is the first to show that CKD patients have higher fatigability than controls, which may be associated with an impaired motor‐unit recruitment, highlighting a neural drive disturbance with CKD. Further studies are needed to confirm these findings.

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Novel Assessment of Viscoelastic Skeletal Muscle Properties in Chronic Kidney Disease: Association with Physical Functioning

Wilkinson,

Gore,

Baker

et al. 2023

Physiologia

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Chronic kidney disease (CKD) is characterised by poor physical function. Mechanical muscle properties such as tone, elasticity, and stiffness influence the functional state of the muscle. Measuring these muscle mechanical properties is difficult and data on CKD are sparse. Using a novel myotonometer device, the aims of this study were to compare the viscoelastic muscle properties in CKD patients with previously reported data and to explore the association with muscle function. Non-dialysis-dependent CKD participants were recruited into a cross-sectional study conducted between 2018 and 2020. Muscle properties (tone, stiffness, elasticity) were assessed using a myotonometer (MyotonPRO). Muscle function was assessed using physical performance tests (sit-to-stand 5 and 60, timed up and go, short physical performance battery, gait speed, incremental shuttle walk, postural sway). General linear regression models were used to explore the association between muscle properties and physical function. Thirty-nine participants were included (age 64.2 (SD: 10.4) years; 51% male; eGFR 40.9 (SD: 20.0) mL/min/1.73 m2). Participants with CKD had reduced muscle tone, stiffness, and elasticity compared to previously reported studies. Muscle tone (B = −0.567, p = 0.003) and muscle stiffness (B = −0.368, p = 0.071) were greater in males than females. Increased BMI was associated with lower muscle tone (B = −0.528, p = 0.002) and muscle stiffness (B = −0.577, p = 0.002). No meaningful nor consistent associations were found between these properties and measures of muscle function and physical performance. In conclusion, using a novel handheld myotonometer, this study found that CKD patients exhibit a reduction in muscle tone, stiffness, and elasticity. In a passive state, these viscoelastic muscle properties showed no consistent associations with physical performance.

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The Associations between Rapid Strength Development and Muscle Stiffness in Older Population

Cited by 3 publications

References 26 publications

Sex Differences in the Mechanical and Neurophysiological Response to Roller Massage of the Plantar Flexors

Sex Differences in the Mechanical and Neurophysiological Response to Roller Massage of the Plantar Flexors

Analysis of the rate of force development reveals high neuromuscular fatigability in elderly patients with chronic kidney disease

Novel Assessment of Viscoelastic Skeletal Muscle Properties in Chronic Kidney Disease: Association with Physical Functioning

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